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@#Abstract：The infection rate and incidence of diphtheria have been controlled effectively under the large⁃scale immunization projects. However，in recent years，cases of diphtheria have occurred frequently at home and abroad. Except for common infection in children，the number of middle⁃aged and elderly patients also increased，indicating that the prevention and control of diphtheria still should not be ignored. This paper reviewed the etiological characteristics，pathogenic mechanism as well as the epidemic and immunization status at home and abroad of diphtheria and looked forward to the above problems.
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@# Objective - （ ） To explore the influence on the diagnosis of occupational noise induced deafness ONID using three ， Methods versions of diagnostic criteria in 2002 2007 and 2014. A total of 1 766 workers who asked for ONID diagnosis were selected as the research subjects using judgment sampling method. The results of pure tone audiometry were collected. GBZ 49-2002Diagnostic Criteria of Occupational Noise-inducedHearing Loss（ The ONID was diagnosed using hereinafter referred to as GBZ 49-2002），GBZ 49-2007Diagnostic Criteria of Occupational Noise-induced Deafness（ GBZ 49-2007） hereinafter referred to as GBZ 49-2014 Diagnostic of Occupational Noise-induced Deafness（ GBZ 49-2014）， and hereinafter referred to as and the Results - - ， - diagnostic results were compared. Compared with GBZ 49 2002 and GBZ 49 2007 diagnosis with GBZ 49 2014 had （ vs ， vs ， P ）， （ vs ， a higher rate of ONID 57.9% 66.0% 44.8% 66.0% both <0.01 and had a higher rate of mild ONID 47.3% 54.6% vs ， P ） - - 36.0% 54.6% both <0.01 . The diagnostic rate for ONID using GBZ 492014 was higher than those using GBZ 49 2002 and - （ P ）Conclusion - GBZ 49 2007 in each age groups all <0.01 . GBZ 49 2014 improved the diagnostic rate of ONID compared - - with GBZ 49 2002 and GBZ 49 2007. The reason is related to the inclusion of 4 000 Hz hearing threshold with a weight of 0.1 - as the diagnostic hearing threshold and the use of a new age and gender correction method in GBZ 49 2014.
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Objective To evaluate the clinical efficacy of flexible ureteroscopy combined with physical vibration lithecbole in treatment of massive upper urinary calculi. Methods The clinical data of 62 cases with massive upper urinary calculi from Feb 2016 to Mar 2017 were analyzed retrospectively. The average diameter of stones were (656.70 ± 275.40) mm2. The removal rate of stones, general conditions during the operation, the postoperative adverse reactions and renal function changes were observed. Results All 62 patients had successfully completed flexible ureteroscopy operation, and had physical vibration stone removal treatment after 1 week. The rate of stone removal was 61.29％ in the next day (38/62), 85.48％ (53/62) in the next 1 week and 96.77％ (60/62) in the next 3 weeks. Postoperative fever occurred in 2 cases, the overall complication rate was 3.23％. 18 patients had improved renal function while 4 patients keep stable after operation. Conclusion The flexible ureteroscopy combined with physical vibration lithecbole is a safe and effective therapeutic method for massive upper urinary calculi. It has high stone removal rate, less complications, little impact on renal function. It is valuable to advocate clinically.